Still suffering the effects of a personal tragedy, Adam Dalgliesh wades through a complex web of desperation, revenge, blackmail, and secret love to solve a series of murders at a government forensic lab. Hunting a "back seat strangler" in London, Dalgliesh is called to investigate the scene of a young woman found murdered in a car in a bleak country quarry. Convinced the murder is not linked to his investigation, he returns to London, but is urgently recalled when a senior forensic scientist is found murdered at a lab not far from the quarry. Produced for the PBS series Mystery! these multi-part dramas were originally penned by MWA Grand Master P.D. James and star the superbly cast Roy Marsden as Chief Superintendent (and later Commander) Adam Dalgliesh of Scotland Yard; Marsden's subtle but clear characterization breathes life into James's enigmatic poetry-writing detective.